Thor the Dark World VIP:
http://www.roblox.com/Thor-The-Dark-World-VIP-item?id=135803776
Details on SuperHero Clash:
http://www.roblox.com/Forum/ShowPost.aspx?PostID=128866510
Complete Suit List:
http://www.roblox.com/Forum/ShowPost.aspx?PostID=107492165